Abstract: Based on the living habits of abalone and summaries of the characteristics of aquaculture installations at home and abroad,the new high-density vertical net cage were developed. We researched on the feed distribution in culture net cage, and the species of fouling organisms comparing traditional aquaculture cage with new vertical net cage in sea area. The results showed that in the contrast experiments,asparagus and seaweed were fed by dumping way at slack period,the seed proportion could reach to 30.4% and 36.7% respectively in abalone vertical net cage, higher than the other ways of feeding. Through nine months of breeding,the average weight and survival ratio which abalone were placed in net cage with 1 cm mesh size of culture net cage were (29.1±6.17) g and 60.5% respectively. The weight and survival ratio of abalone in traditional suspended cage were (22.8±7.93) g and 33.5% respectively,it was significantly lower than the abalone in the vertical net cage(P<0.05). Organisms attached on cage showed no significant difference in weight among different size mesh of culture net cages(P>0.05),but it was significantly more than the traditional suspended cage(P<0.05).The fouling organisms showed significant increase in quantity and kinds during summer and beyond. Comparing with traditional suspended cage,the advantage was obvious that the new vertical net cage were easily operated,good in water exchange,low labour costs,higher survival rate and security.